Risk Letters

Exploited vulnerability

CVE-2025-35939

TLP:CLEAR

Craft CMS External Control of Assumed-Immutable Web Parameter Vulnerability

Craft CMS contains an external control of assumed-immutable web parameter vulnerability. This vulnerability could allow an unauthenticated client to introduce arbitrary values, such as PHP code, to a known local file location on the server. This vulnerability could be chained with CVE-2024-58136 as represented by CVE-2025-32432.

Facts

  • Vendor: Craft CMS
  • Product: Craft CMS
  • CVSS: 6.9
  • EPSS (probability of exploitation within 30 days): 1.3 %
  • On CISA's Known Exploited Vulnerabilities list since: 2 June 2025
  • First known exploitation: 2 June 2025
  • CISA's deadline for US federal agencies: 23 June 2025
  • Weakness: CWE-472
  • First seen by Risk Letters: 2 June 2025

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Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD